diff --git a/nixos/home/danny/home.nix b/nixos/home/danny/home.nix
index 22074e9..6e52073 100644
--- a/nixos/home/danny/home.nix
+++ b/nixos/home/danny/home.nix
@@ -213,6 +213,7 @@
     # zed-editor   # TODO: Bloat
     code-cursor
     cursor-cli
+    dfu-util      # USB DFU firmware flasher (Flipper Zero etc.)
     discord
     mapscii
     mpv
diff --git a/nixos/hosts/daniel-macbook-air.nix b/nixos/hosts/daniel-macbook-air.nix
index 354cfb1..75a6eac 100644
--- a/nixos/hosts/daniel-macbook-air.nix
+++ b/nixos/hosts/daniel-macbook-air.nix
@@ -39,6 +39,7 @@ in {
     casks = [
       "google-chrome"
       "disk-inventory-x" # Apple Silicon uses Homebrew; nixpkgs package is x86_64-darwin only.
+      "qflipper"         # Flipper Zero firmware updater GUI
     ];
     onActivation.cleanup = "zap";
   };